Rockport Women's Truwalkzero III Stretch 2 Band Flat Sandal 100% Nylon/Spandex Imported Synthetic sole Comfort system designed to provide lightweight shock absorption. 6mm memory foam footbed for a cushioned feel, contoured ethylene vinyl acetate for extra stability Truwalk architecture allows for heel shock absorption, smooth heel to toe roll, easy forefoot flex Lightweight rubber outsole provides durable shock absorption to help reduce foot fatigue